add setting to disable disposable launchers

[commy2]

When merged this pull request will:

• add setting to disable disposable launchers
• only if enabled (default) will disposable launcher be replaced with used tube after firing
• only if enabled will disposable launcher magazines in cargo be replaced with loaded disposable launchers
• if disabled, disposable launchers can be reloaded
• tooltips for auto-drop-used-launcher setting

[PabstMirror]

This runs before Settings Initialized
might need to use

["CBA_settingsInitialized", {
    ["All", "Init", FUNC(replaceMagazineCargo), nil, nil, true] call CBA_fnc_addClassEventHandler;
}] call CBA_fnc_addEventHandler;